This new USB filter from Starlight Xpress is unique in that it does not require a separate power supply when used with USB control - the high performance DC gear-motor runs entirely from the USB supply and consumes less than 100mA. It is also capable of operation from a serial input or from a switched hand controller, both of which power the wheel from a small dry battery.

Light and slim with thumbscrews for quick and easy swapping of filter disks without tools.

Quiet in operation and the Hall-Effect 3-bit encoded positioning gives precise filter locations (not serially sequential) so you can easily swap between any filters without accidentally losing the wheel position.

To change adapters simply use a small screwdriver to release three stainless screws then lift off the adapter flange. Each flange can be rotated to any angle before locking down so the wheel and camera can be orientated into the optimum position.

Nicely done by Starlight Xpress!..able to get filter perfectly at center of CCD.

Thanks to Starlight Xpress for not compromising on quality at such a low price.

Rating (max 5):

A1 quality EFW

Monday, 20 June 2016 | Rodger

Have used EFW's for years and always had problems with miss-aligned filters and threads not strong enough to hold the camera and flattener properly.This wheel gets over all those problems1 Zero movement of ancillary equipment. Camera, reducer etc stay where you put them.2 Precision centering of filters, flats are now correct. My old wheel could have dust bunnies off by 5px or more after rotating the filter holder.3. Less power cables. The USB power is a great advantage.4. So easy to change filters, takes about 5 mins. The ASCOM software accepts multiple filter configurations.5. No external motors etc and on filter adjustment so the rotation of the camera to scope can be precisely where you want it.

Its also cheaper than my old wheel. I was worried that this would mean lower quality but its not. Just what you would expect from Starlight Express.